Step into the delightful world of Irish confectionery with Fifteens, a beloved no-bake sweet treat that’s as charming as its name suggests. Originating from Northern Ireland, these delightful morsels are celebrated as a quintessential “traybake” or “fridge bake,” offering a burst of flavor and texture without ever needing an oven. The name “Fifteens” isn’t just a quirky label; it refers to the precise count of its three main ingredients: 15 Digestive biscuits, 15 glacé cherries, and 15 marshmallows. Bound together with a luscious blend of sweetened condensed milk, then rolled in coconut and chilled to perfection, Fifteens are effortlessly elegant and irresistibly chewy. They offer a unique combination of crunchy biscuit, sweet cherry, and soft marshmallow, making them a festive and fun addition to any occasion, from casual family gatherings to more formal tea parties.

For those unfamiliar with the concept, think of Fifteens as the ultimate no-fuss dessert. They embody the spirit of home baking without the actual baking, making them an ideal project for busy individuals, novice cooks, or anyone looking for a quick yet impressive sweet fix. The simplicity of their preparation belies the depth of their deliciousness. The base of finely crushed Digestive cookies provides a comforting, malty foundation, while the candied cherries add vibrant color and a burst of fruity sweetness. Soft, fluffy marshmallows contribute a delightful chewiness, and the rich, creamy sweetened condensed milk acts as the perfect binder, marrying all these components into a cohesive, flavorful log. Finally, a generous coating of desiccated coconut provides a subtle tropical hint and a pleasing textural contrast, completing this iconic Northern Irish delicacy.
Essential Ingredients for Perfect Fifteens and Smart Substitutions
Crafting the perfect batch of Fifteens starts with understanding each key ingredient and how it contributes to the treat’s overall magic. While the recipe is straightforward, a little insight into your choices can elevate your results. Here’s a detailed look at the core components:
Digestive Biscuits (Cookies): The Foundation of Flavor and Texture
Digestive biscuits are the backbone of Fifteens, providing that signature crumbly texture and subtly sweet, malty flavor. In many parts of the world, especially in the UK, Ireland, Canada, and Australia, these biscuits are a common pantry staple. Brands like McVitie’s are globally recognized, but local varieties from Peak Freans or Christie in Canada also work wonderfully. When crushing, you have a choice: a finer crumb creates a more uniform slice, while leaving some larger pieces offers a delightful textural contrast. I often prefer to leave a little bit of texture, as it adds an extra dimension to each bite. If Digestive biscuits are hard to find in your region, plain, unsweetened graham crackers or even simple butter cookies could serve as an alternative, though they will impart a slightly different flavor profile. The key is a relatively dry, plain biscuit that will absorb the condensed milk without becoming soggy.
Glacé Cherries (Candied Cherries): The Jewel-Toned Sweetness
These vibrant, sweet, and slightly chewy cherries are a visual and flavorful highlight of Fifteens. Glacé cherries are fresh cherries that have been cooked in a sugar syrup until they are candied and preserved. They are readily available in the baking aisle of most grocery stores, especially around holiday seasons. In places like Canada, bulk food stores such as Bulk Barn are excellent for purchasing just the right amount, as you typically only need 15. The rich sweetness and slight chew of glacé cherries are hard to replicate exactly. However, if you’re in a pinch, well-drained maraschino cherries can be used. It’s crucial to pat them thoroughly dry with paper towels to remove excess moisture and prevent them from making your mixture too wet. Alternatively, dried cranberries or chopped candied fruit peel could offer a different but equally appealing fruity note, though these would alter the classic flavor.
Marshmallows: The Chewy, Sweet Surprise
Marshmallows contribute a wonderful chewiness and lightness to Fifteens. Traditionally, larger marshmallows were used and cut into quarters, which can be a fun activity. However, using mini marshmallows simplifies the process considerably, as they require minimal or no chopping. You can stick to classic white marshmallows for a clean look, or embrace tradition by adding a few pink marshmallows to the mix, which are often found in bags of assorted colored mini marshmallows. The combination of white and pink adds a charming visual appeal. For those who prefer a less sweet option, sugar-free marshmallows are available, but ensure they are still soft and pliable. The size and shape of the marshmallows will impact the visual texture of your sliced Fifteens, so consider what aesthetic you’re aiming for.
Desiccated Coconut: The Signature Coating
The final flourish for Fifteens is a generous roll in desiccated coconut. This coating not only adds a lovely, subtle tropical flavor but also provides a pleasant texture and prevents the log from sticking. Desiccated coconut refers to finely shredded, dried coconut. While traditionally preferred for its fine texture, don’t hesitate to use what you have on hand. Medium-flake coconut works perfectly well, offering a slightly coarser, more noticeable coconut presence. The smaller the flake, the more uniformly it will coat your log. Unsweetened shredded coconut can also be used if you prefer to control the overall sweetness of the treat. Toasting the coconut lightly before rolling can add another layer of depth and nuttiness, though this is an optional step that deviates from the traditional preparation.
Sweetened Condensed Milk: The Binding and Sweetening Agent
Sweetened condensed milk is the magical ingredient that binds everything together, creating a rich, creamy, and wonderfully sweet matrix for the biscuits, cherries, and marshmallows. It’s a thick, sugary milk that comes in a can, distinct from evaporated milk, which is unsweetened. Brands like Eagle Brand are widely available. There is no direct substitute for sweetened condensed milk in this recipe without fundamentally altering the texture and flavor. Its unique composition is crucial for achieving the proper consistency that allows the mixture to be shaped into a log and hold together once chilled. The amount needed can vary slightly depending on how finely your biscuits are crushed and the humidity, so it’s always best to add it gradually until the mixture is just moistened and cohesive, with no dry crumbs remaining.
Crafting Your Own Batch of Classic Fifteens: A Step-by-Step Guide
Making Fifteens is a delightful and surprisingly simple process, perfect for involving the whole family. These visual steps will guide you through each stage, ensuring a perfect no-bake treat every time. Remember, the full ingredient list and precise instructions are available in the recipe card below, but this visual summary provides a clear overview.



- Begin by gathering your 15 Digestive biscuits. These will form the crunchy base of your Fifteens. Ensure they are fresh for the best texture and flavor.
- Place the biscuits into a sturdy plastic zipper bag. Using a rolling pin, gently yet firmly roll over the bag to crush the biscuits into crumbs. You can also achieve this quickly with a food processor for a more uniform crumb, but I often prefer the rustic charm and varied texture that hand-crushing provides. Aim for a mix of fine crumbs and smaller pieces for an interesting bite.
- Once crushed, transfer the biscuit crumbs to a large mixing bowl. Add the marshmallows – whether whole mini marshmallows or quartered large ones – and the halved glacé cherries. Give everything a good stir to ensure all the dry ingredients are evenly distributed. This step is crucial for an even distribution of flavor and texture throughout your final log.



- Once the dry ingredients are mixed, it’s time to introduce the star binder: sweetened condensed milk. Start by adding about two-thirds of the recommended amount to the bowl. This allows you to control the consistency and prevent the mixture from becoming too sticky.
- Stir the mixture thoroughly, ensuring the sweetened condensed milk coats all the crumbs. Continue adding small amounts of condensed milk, stirring well after each addition, until all the biscuit crumbs are moistened and the mixture comes together into a cohesive, moldable mass. There should be no dry crumbs remaining at the bottom of the bowl, but it shouldn’t be overly wet or sloppy either. The goal is a firm, sticky mixture that holds its shape.
- Prepare your workspace by laying a long piece of plastic wrap (approximately 18-24 inches) flat on your counter. Sprinkle a generous, even line of desiccated coconut down the center of the plastic wrap, creating a bed about 12 inches long and 3-4 inches wide. This will form the initial coating for your Fifteens log.



- Carefully spoon the prepared biscuit mixture onto the coconut bed on the plastic wrap. Gently form it into a log shape, aiming for dimensions of approximately 12-14 inches long and 2-3 inches wide. Don’t worry about perfection at this stage; you’ll refine the shape later.
- Once the mixture is in a rough log shape, sprinkle more desiccated coconut generously over the top. Now, carefully fold one side of the plastic wrap over the log. Using your hands on the outside of the plastic wrap, start rolling and shaping the log into a more defined sausage shape, aiming for about 12 inches long and 2 inches wide. The plastic wrap helps you to evenly distribute the coconut and create a firm, compact log without getting your hands too sticky. Add additional coconut if necessary to ensure all sides are thoroughly coated. Twist the ends of the plastic wrap tightly to seal the log securely. Place the wrapped log in the refrigerator for at least 4-6 hours, or ideally overnight, to allow it to firm up and for the flavors to meld. Once thoroughly chilled, unwrap, slice into 1/2 to 3/4-inch pieces, and enjoy your delicious, homemade Fifteens!
Expert Recipe Tips for Flawless Fifteens
- Crushing the Biscuits for Optimal Texture: While a food processor can create a uniform crumb, I highly recommend crushing the Digestive biscuits by hand in a freezer bag using a rolling pin. This method allows you to control the texture, leaving a delightful mix of fine crumbs and small, crunchy biscuit pieces. These varied textures add an incredible depth and interest to the finished slices, making each bite a more dynamic experience. Avoid turning them into a fine powder, as some texture is highly desirable.
- Mastering the Sweetened Condensed Milk Ratio: The amount of sweetened condensed milk specified in the recipe is approximate because factors like the moisture content of your biscuits and ambient humidity can affect how much is truly needed. The goal is to moisten the mixture just enough for it to come together cohesibly, without leaving any dry crumbs at the bottom of your mixing bowl. However, be cautious not to overdo it; an excessive amount can make the log too sticky and difficult to handle, and may result in a less firm texture once chilled. Add the milk gradually, mixing thoroughly after each addition, until you achieve the perfect moldable consistency.
- Embracing Imperfection in the First Roll: Don’t get stressed if your initial attempt at rolling and shaping the log isn’t perfectly cylindrical. The beauty of no-bake treats is their forgiving nature. The primary goal of the first roll is to incorporate the coconut and roughly shape the mixture. Once the log has chilled sufficiently in the refrigerator, it will firm up considerably, making it much easier to re-mold and refine its shape with gentle pressure before slicing. So, focus on getting the coconut evenly distributed and the mixture into a basic log, and let the chilling process do the rest of the heavy lifting.
- The Power of the Chill: While Fifteens can be sliced after 4-6 hours of chilling, I’ve found that their flavor and texture significantly improve with extended refrigeration. Chilling overnight or even for 24 hours allows all the ingredients to meld beautifully, deepen in flavor, and achieve a firmer, more sliceable consistency. This also makes the process of cutting neat, uniform slices much easier. Planning ahead by making your Fifteens the day before you intend to serve them is a simple trick to enhance their deliciousness.
- Preventing Stickiness During Storage: Once your Fifteens are sliced, they can become slightly sticky, especially in warmer environments. To prevent them from sticking together in your airtight container, you can place small pieces of parchment paper between the slices. This simple step ensures each slice remains pristine and easy to grab, preserving their appealing presentation and making them perfect for on-the-go snacking or serving.

Planning Ahead: Storing, Freezing, and Maximizing Freshness
One of the many advantages of Fifteens is their suitability for making ahead, which not only saves you time but also often enhances their flavor. Proper storage is key to enjoying these treats for longer.
Making Ahead: Fifteens absolutely thrive with advance preparation. As mentioned, they require a minimum of 4-6 hours of chilling to firm up properly, but I’ve consistently found that their flavor and texture deepen and improve significantly with a longer chill, ideally overnight or even for up to 24 hours. This allows the various components to truly meld and creates a more robust and satisfying taste experience. Don’t hesitate to prepare them a day or two before you plan to serve them; your patience will be rewarded with a superior treat.
Storing: Once sliced, Fifteens should be stored in an airtight container to maintain their freshness and prevent them from drying out or absorbing refrigerator odors. Keep them in the refrigerator, where they will remain delightfully fresh and chewy for up to 2 weeks. For best results and to prevent the slices from sticking to each other, you can layer them with small pieces of parchment paper. This also helps preserve their neat presentation.
Freezing: Fifteens are an excellent candidate for freezing, allowing you to enjoy this delightful treat long after you’ve made a batch. You can freeze either the entire log before slicing or the individual sliced pieces. For optimal freezing, ensure the log or slices are wrapped very tightly in plastic wrap, and then placed into a freezer-safe bag or airtight container. This double layer of protection helps prevent freezer burn. Fifteens can be stored in the freezer for up to 3 months. When you’re ready to enjoy them, simply transfer the desired amount from the freezer to the refrigerator for a few hours, or let them thaw at room temperature for about 30-60 minutes, until softened to your liking. They thaw beautifully, retaining their texture and flavor, making them a perfect grab-and-go dessert or a quick sweet snack.

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Ingredients
- 15 Digestive biscuits, crushed
- 15 glacé cherries (aka candied cherries), halved *see Note 1 below
- 15 large marshmallows, quartered *see Note 2 below
- 3/4 cup + 1 – 2 Tablespoons (200 ml) sweetened condensed milk, approximately
- 3 1/2 oz (100 g) desiccated coconut, *see Note 3 below
Instructions
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Start by crushing the Digestive cookies. You can do this in a food processor or add to a plastic zipper bag and use a rolling pin to crush them. I like to leave just a bit of texture to the crumbs rather than completely crushing them, but you can go either way.
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Add the crushed cookies to a medium bowl. Add the halved glacé cherries and the marshmallows and stir together.
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Measure out the sweetened condensed milk. Add about 2/3-3/4 of the condensed milk to the bowl and stir together. Add as much of the remaining sweetened condensed milk as needed to just moisten all the crumbs. You may not need to use quite all of it. There shouldn’t be any dry crumbs hanging out in the bottom of the bowl.
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Tip! Refer to the step-by-step photos above this Recipe Card if any of the instructions for rolling the log aren’t clear to you.
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Place an 18-24 inch long piece of plastic wrap on the counter. Sprinkle an even layer of coconut in a thin line in the middle of the plastic wrap, about 12 inches long and 3-4 inches wide. Spoon the cookie mixture on top of the coconut in a long line about 12 inches long and 2 1/2 inches wide. Sprinkle more coconut evenly over the top of the cookie mixture. Fold the side of the plastic wrap over the cookie mixture and use your hands to shape and roll the cookie mixture into an even log, adding additional coconut if needed to coat all the sides of the log. Don’t stress over it too much. The shape doesn’t need to be perfect. You can re-shape it as needed once chilled. When the log is shaped and wrapped, twist the ends of the plastic to seal well and refrigerate for at least 4-6 hours. (I found the flavor improved as they chilled, so it’s fine to let them chill a little longer or overnight before slicing.)
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Remove the chilled log from the fridge and slice it into 1/2-3/4 inch slices. Place the slices into an airtight container and refrigerate. The slices will keep in the fridge for up to 2 weeks.
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The cookie log or the slices will also freeze well for up to 3 months.
Notes
Note 2: You can use 15 large marshmallows or about 80 mini marshmallows. Use just white marshmallows, or mix in some pink marshmallows, as well. If you buy a bag of colored mini marshmallows, you will have both the white and the pink marshmallows to use.
Note 3: Desiccated coconut is most traditionally use to coat Fifteens, but you can use what you have on hand. I used medium coconut here. The smaller the flake the better.
Be sure to read the notes above this Recipe Card for more tips on making this recipe. You’ll find substitution suggestions, more tips and step-by-step photos that you might find helpful.
Nutrition Information (per serving):
- Serving: 1 serving
- Calories: 168 kcal
- Carbohydrates: 26 g
- Protein: 2 g
- Fat: 6 g
- Saturated Fat: 4 g
- Polyunsaturated Fat: 1 g
- Monounsaturated Fat: 1 g
- Cholesterol: 4 mg
- Sodium: 91 mg
- Potassium: 101 mg
- Fiber: 1 g
- Sugar: 16 g
- Vitamin A: 32 IU
- Vitamin C: 0.4 mg
- Calcium: 46 mg
- Iron: 1 mg